The Inkey List

Hyaluronic Acid Serum

SerumBudgetMorning or evening
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A multi-weight hyaluronic acid serum with vitamin B5 for layered hydration. A no-frills, affordable HA serum; apply to damp skin and seal with moisturiser to avoid the dryness HA can cause in low humidity.
The verdict

What this is good for

✓ Great forDehydrationDrynessDullness
The formulation

Ingredient stack

Each ingredient is listed in descending concentration. Above the 1% line the order is regulated — below it, brands can list in any order.

Ingredients above the dashed gold line are dosed above 1% (the regulatory threshold) — these are what the formulation is really built on. Percentages are positional estimates from INCI order unless a brand discloses them.

~50–80%Aqua
~5–25%Glycerin
~3–10%Sodium Hyaluron…
~2–6%Hydrolyzed Hyal…
~1.5–4%Sodium Hyaluron…
~1–2%Panthenol
≤ 1% each2 more ingredients below 1%
position-estimated %1% regulatory line
Hero actives

What's actually doing the work

Hyaluronic Acid
Multi-Weight HA
Acid
A humectant that binds water in the upper skin layers for immediate plumping and hydration. Multi-weight forms reach different depths. Apply to damp skin and seal with moisturiser, especially in dry climates.
Full glossary entry →
Panthenol
Vitamin B5
Vitamin
Provitamin B5. A humectant and soothing agent that supports barrier repair and reduces the look of redness and irritation; reliably gentle.
Full glossary entry →
When to use

Routine placement

Morning or evening
Cheaper alternatives

Looking for a dupe?

The closest active-matched alternative is the The Ordinary Hyaluronic Acid 2% + B5 (99% active overlap). We found 6 options that share this product’s hero actives.

Dupe guide
See all serum dupes for this product
Ranked by ingredient overlap, with an honest note on what’s different in each.
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Next steps

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Skin Stacker is independent and receives no payment from any brand. Ingredient analysis is based on publicly disclosed INCI lists and the peer-reviewed literature. Percentages are positional estimates from INCI order unless a brand discloses them. Formulations change — always re-check the label on your specific batch before using.